You worked hard for that bachelor's degree. Even harder for the master's. You have a sharp mind, a few years of experience under your belt, and you're itching to get ahead. But it's hard to do that when your boss views you as the office intern. Despite your qualifications, your boss has chosen you as his errand-runner, coffee-bringer and bagel-fetcher. Although you're one of the hardest workers on the team, your efforts are being wasted on menial tasks because your boss has -- for reasons known only to him/her -- picked you as a whipping boy and personal slave.
SOLUTION: It all depends on your boss and your specific situation. If this is a highly competitive job that will be a steppingstone to a high salary position in a year or two, maybe you stick it out. But if you don't want to quit yet can't bear the thought of being a glorified intern, take some action. Make yourself a "brag book" and fill it with specific examples of your noteworthy successes while on the job. Then go to your boss and present him/her with it, asking for added responsibilities. Pitch a new project or idea you've been cooking up, and tell your boss you'd like the opportunity to pursue it.
Maybe you’ll still have to put up with fetching daily coffees, but if you make a big enough impression you can get promoted and escape to greener pastures sooner.